4008085 has 4 divisors (see below), whose sum is σ = 4809708. Its totient is φ = 3206464.

The previous prime is 4008077. The next prime is 4008089. The reversal of 4008085 is 5808004.

4008085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1425636 + 2582449 = 1194^2 + 1607^2 .

It is a cyclic number.

It is not a de Polignac number, because 4008085 - 2³ = 4008077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4008089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400804 + ... + 400813.

It is an arithmetic number, because the mean of its divisors is an integer number (1202427).

Almost surely, 2^4008085 is an apocalyptic number.

It is an amenable number.

4008085 is a deficient number, since it is larger than the sum of its proper divisors (801623).

4008085 is an equidigital number, since it uses as much as digits as its factorization.

4008085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801622.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 4008085 is about 2002.0202296680. The cubic root of 4008085 is about 158.8469843652.

The spelling of 4008085 in words is "four million, eight thousand, eighty-five".